Results 41 to 50 of about 544,807 (305)

All-Textile Corrugated Ground SIW Horn Antenna for Millimeter-Wave WBAN Applications [PDF]

Journal of Electromagnetic Engineering and Science, 2019
An all-textile H-plane substrate integrated waveguide (SIW) horn antenna for millimeter-wave wireless body area network applications is proposed. A coaxially fed SIW H-plane horn is designed for radiation toward a human body surface.
Seongkyu Lee, Jaehoon Choi
doaj   +1 more source

Multi-mode horn antenna simulation [PDF]

, 1980
Radiation patterns were computed for a circular multimode horn antenna using waveguide electric field radiation expressions. The circular multimode horn was considered as a possible reflector feed antenna for the Large Antenna Multifrequency Microwave ...
Dod, L. R., Wolf, J. D.
core  

Liquid‐Crystal‐Based Reconfigurable Intelligent Surface for 7 GHz Mobile Communication

Advanced Materials Technologies, EarlyView.
The glass‐based liquid‐crystal reconfigurable intelligent surface (LC‐RIS) integrates active‐matrix driving and blind‐greedy phase optimization within a 5G‐NR OFDM framework. This enables continuously tunable and autonomous enhancement of wireless coverage. Leveraging the transparency and manufacturability of liquid crystal panels, it is ideally suited
Tien‐Lun Ting, Yuh‐Chyi Chang, Yi‐Chan Hung, Cheng‐Yuan Hsiao, Chao‐Kai Wen, Tsung‐Hsien Lin   +5 more
wiley   +1 more source

Continuum Robots in Surgery: From Engineering Design to Clinical Practice

Advanced Robotics Research, EarlyView.
The hyper‐redundant nature of continuum robot structures enables near‐infinite degrees of freedom leading to immense potential for medical applications. This review provides a historical background of continuum robots and novel ideas shaping their progress to current structural design, sensing technology, modeling techniques, and control methods.
Griffin Smith, Kaitlyn Clancy, Siwen Xie, Xiaochen Li, Sarah Khalife, Benjamin van der Woerd, Onaizah Onaizah   +6 more
wiley   +1 more source

Geodesic H-Plane Horn Antennas

IEEE Transactions on Antennas and Propagation, 2023
This article describes a detailed procedure that allows for a time-efficient design of fully metallic geodesic H -plane horn antennas using an in-house ray-tracing method together with an optimization algorithm. With all the propagation in the air, geodesic H -plane horn antennas are low-loss and highly efficient.
Mingzheng Chen, Francisco Mesa, Oscar Quevedo-Teruel   +2 more
openaire   +3 more sources

Gain and Radiation Pattern Enhancement of the H-Plane Horn Antenna Using a Tapered Dielectric Lens

IEEE Access, 2019
The design of a high-gain and low-profile H-plane horn antenna embedded into a large metallic platform is proposed. The antenna is composed of three parts: coaxial-to-ridged transition, wideband H-plane antenna, and dielectric lens. The coaxial-to-ridged
Ping Wang, Qi Wu, Rong-Bu He, Wei Luo
doaj   +1 more source

Scattering characteristics of antennas in cyberspace

工程科学学报, 2020
5G network technology can meet the high requirements of cyberspace development in the performance of communication platforms. Massive MIMO (multiple-input multiple-output) antenna array is one of the core technologies of 5G. The mutual coupling effect of
Jian-zhong CHAI, Hang-yu CHEN, Hao-hui HONG, Xu CHAO, Jing-cheng ZHAO   +4 more
doaj   +1 more source

Photonic Time Crystals and Time‐Varying Electromagnetic Metamatter: A New Direction for Ultrafast Tunable Photonic and Microwave Materials and Devices

Advanced Science, EarlyView.
Photonic time crystals (PTCs) are systems in which electromagnetic parameters are modulated periodically in time, producing momentum bandgaps via temporal scattering rather than spatial Bragg processes. This review examines the theoretical frameworks, modeling, and computational tools for time‐varying media, and summarizes experimental demonstrations ...
Ranjan Kumar Patel, Shriram Ramanathan, Ronald P. Jenkins, Michael J. Carter   +3 more
wiley   +1 more source

Fundamental issues in antenna design for microwave medical imaging applications [PDF]

, 2010
This paper surveys the development of microwave medical imaging and the fundamental challenges associated with microwave antennas design for medical imaging applications. Different microwave antennas used in medical imaging applications such as monopoles,
Fernando, Michael, K. Busawon, M Elsdon, D. Smith, Busawon, Krishna, Smith, Dave, M. Fernando, Elsdon, Michael   +7 more
core   +1 more source

AL398, A Novel NSUN6 Inhibitor, Attenuates Epithelial‐Mesenchymal Transition and Metastasis in Endometrial Cancer by Abrogating m5C‐Dependent Stabilization of Snail mRNA

Advanced Science, EarlyView.
Proposed molecular mechanism: NSUN6 catalyzes m5C methylation on Snail mRNA to enhance its stability, leading to Snail upregulation and EMT promotion. The first‐in‐class inhibitor AL398 suppresses endometrial cancer metastasis by targeting the NSUN6‐m5C‐Snail. axis. ABSTRACT Endometrial cancer (EC) constitutes a leading gynecologic malignancy for which
Xiangzhuan Zhao, Linlin Yang, Huanxiang Chen, Chenfeng Guo, Hongshen Lu, Ying Zhu, Xuanzhi Wang, Yang Li, Ruike Zhang, Zichong Huang, Yifang Chen, Keyu Jin, Zeduo Xu, Lingxiu Meng, Longfeng Zhang, Yuanyuan Han, Yicong Yan, Qiaozhen Kang, Junhu Wan, Hongyang Liu   +19 more
wiley   +1 more source